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2023 Volume 2 Issue 1
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JIANG Lian-qiang, LAI Ting, WANG Jin-feng. Research on Green Control Technology of Tobacco Root Knot Nematode Disease Based on Rhizosphere Health and Precise Chemical Application——Take Lixi Township of Huili County as an Example[J]. PLANT HEALTH AND MEDICINE, 2023, (1): 95-102. doi: 10.13718/j.cnki.zwyx.2023.01.013
Citation: JIANG Lian-qiang, LAI Ting, WANG Jin-feng. Research on Green Control Technology of Tobacco Root Knot Nematode Disease Based on Rhizosphere Health and Precise Chemical Application——Take Lixi Township of Huili County as an Example[J]. PLANT HEALTH AND MEDICINE, 2023, (1): 95-102. doi: 10.13718/j.cnki.zwyx.2023.01.013
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Research on Green Control Technology of Tobacco Root Knot Nematode Disease Based on Rhizosphere Health and Precise Chemical Application——Take Lixi Township of Huili County as an Example

  • 1. Liangshan Prefecture Branch of Sichuan Tobacco Company, Xichang Sichuan 615000, China;

  • 2. Chongqing Xinong Plant Protection Technology Development Co. LTD., Chongqing 400700, China;

  • 3. School of Plant Protection, Southwest University, Chongqing 400715, China

More Information
  • Received Date: 13/12/2022

  • MSC: S432.4

  • Huili County of Liangshan Prefecture of Sichuan Province is one of the main production areas of ‘sweet and sweet' quality tobacco leaves. In recent years, due to climate change, tobacco continuous cropping and other factors, caused outbreak of tobacco root knot nematodes in large areas, posing a serious threat to the high-quality production of tobacco leaves. This study focused on regulation of tobacco rhizosphere health and integrated several technologies, such as oyster silica soil acid adjustment and disease control, and precise chemical application, to establish a tobacco rhizosphere health control basedtobacco root-node nematode green control technology system. The field demonstration and application were carried out in Lixi Town in 2022. The demonstration results showed that the scheme had a good control effect on root knot nematodes, and the control efficiency was up to 81.12%. At the same time, this scheme significantly increased the contents of total phosphorus, available potassium, exchangeable calcium and magnesium in soil, also increased the pH value of soil and the activities of urease, catalase and sucrase, and reduced the content of exchangeable acid in soil, which has important value and significance for optimizing soil structure and continuously controlling the occurrence of root knot nematodes.
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Research on Green Control Technology of Tobacco Root Knot Nematode Disease Based on Rhizosphere Health and Precise Chemical Application——Take Lixi Township of Huili County as an Example

  • Received Date: 13/12/2022

Abstract: Huili County of Liangshan Prefecture of Sichuan Province is one of the main production areas of ‘sweet and sweet' quality tobacco leaves. In recent years, due to climate change, tobacco continuous cropping and other factors, caused outbreak of tobacco root knot nematodes in large areas, posing a serious threat to the high-quality production of tobacco leaves. This study focused on regulation of tobacco rhizosphere health and integrated several technologies, such as oyster silica soil acid adjustment and disease control, and precise chemical application, to establish a tobacco rhizosphere health control basedtobacco root-node nematode green control technology system. The field demonstration and application were carried out in Lixi Town in 2022. The demonstration results showed that the scheme had a good control effect on root knot nematodes, and the control efficiency was up to 81.12%. At the same time, this scheme significantly increased the contents of total phosphorus, available potassium, exchangeable calcium and magnesium in soil, also increased the pH value of soil and the activities of urease, catalase and sucrase, and reduced the content of exchangeable acid in soil, which has important value and significance for optimizing soil structure and continuously controlling the occurrence of root knot nematodes.

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